DuraTrack Dozer Undercarriage
Dozer Track Rollers
Astrak supplies DuraTrack track rollers, also called bottom rollers, for crawler dozers and track loaders, listed by make and model for CAT, John Deere, Komatsu, Case and Liebherr. Forged roller shells, heat treated, on hardened forged alloy or rolled carbon steel shafts with heavy-duty seals, all manufactured to OEM specification in ISO 9001 approved facilities.
Delivery & Warranty
Get a QuoteTrack Rollers for Every Major Dozer Make
DuraTrack track rollers are listed for more than 450 crawler dozer and track loader models: CAT from the D1 to the D10, including the D6, D8 and the 931 to 963 track loaders; John Deere 450 to 850; Komatsu D39 to D155, including the D61 and D65; Case 450 to 2050M; and Liebherr PR711 to PR756. New Holland, Hyundai and Daewoo dozers are covered too. Each model is listed with its single flange and double flange rollers. Not listed? Send the make, model and serial number and we will confirm.
Related Dozer Undercarriage Parts
Dozer Undercarriage
Complete undercarriage and kitsSALT chains, track groups, rollers and idlers, supplied individually or as half and full kits.
Dozer undercarriage
Dozer Track Chains
Sealed and lubricated (SALT)Oil filled, with internal bushing life up to 50% longer than a greased and sealed chain.
Dozer track chains
Track Groups
SALT chain and shoes, assembled to orderBuilt in our own workshops and delivered ready to fit.
Track groups
Track Shoes
560mm to 915mm single grouserSingle grouser dozer shoes on heavy-duty baseplates, boron steel, through hardened.
Track shoes
Idlers
Front and rear, complete cast assembliesCast idler assemblies with heavy-duty seal groups, shafts and brackets.
Idlers
Dozer Sprocket Segments
Three or five tooth sectionsForged and through hardened, with tooth profiles induction hardened to over 50RC.
Dozer sprocket segments
Carrier Rollers
Single flange, double flange and shaft typeGuide the track over the undercarriage frame, with reinforced flanges and heavy-duty seals.
Carrier rollers
Undercarriage Hardware
Grade 12.9 and 10.9, metric and imperialTrack, segment and split master bolts to grade 12.9; sprocket and roller bolts to grade 10.9.
Undercarriage hardwareWhat Goes Into a DuraTrack Dozer Track Roller
Track rollers carry the weight of the dozer through the track chain to the ground, under push, rip and turn loads. Material, hardness and fit decide how long that lasts.
| Feature | What it does |
|---|---|
| Forged roller shell | Friction welded or submerged arc welded, then heat treated by differential quenching or through hardening. |
| Hardened shaft | Forged alloy or rolled carbon steel, hardened to carry the machine weight. |
| Heavy-duty seals | Reinforced flanges and heavy-duty seals increase reliability in dozer conditions. |
| Single and double flange | A double flange roller gives more guidance to the track link. Dozers normally run a mixture of the two. |
| Grade 10.9 roller bolts | Forged from alloy steel and heat treated to OEM specification, in metric and imperial. |
Scroll the table sideways to see every column.
Every roller is matched to the make, model and serial number against our product reference guide. Parts are not interchangeable between models, or often between serial number ranges of the same model.
Track roller or carrier roller?
What do I need to identify my track rollers?
Do I need new roller bolts?
When Do Dozer Track Rollers Need Replacing?
Track roller wear shows on the tread and the flanges, where the chain rails run over the roller. Measure the rollers against new dimensions whenever the chain is measured, because the two wear together.
- Wear on the roller tread and flanges where the chain rails run
- Side wear on the link pin bosses before the links are fully worn, which means the rollers want replacing
- The chain jumping on the sprocket, which worn track rollers are one cause of
- Material packing between the rollers and the links, which stops them running true and speeds up wear
Wide shoes increase roller tread and flange wear: use the narrowest shoe that still gives adequate flotation, and keep the track correctly tensioned. Dozing and push loading put the load on the front rollers; ripping puts it on the rear.
Change all the bottom rollers on a track together. One new roller among worn ones stands proud and carries more than its share of the load, so it wears faster than the set it replaced.
Why DuraTrack Dozer Track Rollers Are the Operator's First Choice
Large Stock Availability
DuraTrack dozer track rollers held in stock across eight stocking locations, with the roller bolts to go with them, maximising machine uptime.
Quality Approved
Forged, heat treated and manufactured to OEM specification in ISO 9001 approved facilities.
Fast Delivery
Warranty Backed
Three years or 3,000 hours on all DuraTrack dozer undercarriage, track rollers included, whichever comes first, matching the OEM warranty period.
Dozer Track Roller Questions, Answered
What is a dozer track roller?
Which dozer makes and models do you cover?
Single flange or double flange?
How do I know when track rollers are worn?
Should I change all the track rollers together?
What warranty comes with dozer track rollers?
How quickly can you deliver dozer track rollers?
Get a Quote for Dozer Track Rollers
Send the machine make, model and serial number, with the number of track rollers per side and the shoe width if you have them. We confirm the roller against our product reference guide and price it.
Speak to the Team
Getting the flange type and bolt pattern right first time saves a second visit. Technical advice comes at no additional cost.
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